Home / 1,231.59-1,843.26-839.97

Finding the Fourth Proportional to 1,231.59, 1,843.26 and 839.97

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Solution

The fourth proportional to 1,231.59, 1,843.26 and 839.97 is: 1,257.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.59 : 1,843.26 = 839.97 : x
  2. Step 2: Convert to fraction form
    1,231.59/1,843.26 = 839.97/x
  3. Step 3: Cross multiply
    1,231.59x = 1,843.26 × 839.97
  4. Step 4: Simplify right side
    1,231.59x = 1,548,283.10
  5. Step 5: Solve for x
    x = 1,548,283.10/1,231.59
  6. Step 6: Final answer
    x = 1,257.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.